Processing-free type lithographic printing plate material

Claim 2

A processing-free lithographic printing plate, which comprises a support having deposited thereon a composition containing germanium and sulfur and at least one of a metal or a metal compound other than germanium in a physically mixed state, the term "physically mixed state" meaning the state where both ingredients do not form complete films or layers on said support in a superposed disposition but the microscopic condition in which there are areas where the surface of the support is uncovered, areas of the composition containing germanium and sulfur, areas of a metal or a metal compound, and areas where the composition containing germanium and sulfur and a metal or metal compound are super-imposedly deposited, on the surface of the support.

Claim 3

The lithographic printing plate of claim 1, wherein said support is a metal plate, a synthetic resin sheet, a laminate of a metal plate or metal foil and a synthetic resin sheet or paper.

Claim 4

The lithographic printing plate of claim 2, wherein said support is an aluminum plate or a zinc plate.

Claim 5

The lithographic printing plate of claim 3, wherein said support is an aluminum plate having thereon an anodic oxidation film.

Claim 6

The lithographic printing plate of claim 1, wherein said composition containing germanium and sulfur is a Ge-S material, a Ge-S-X material, or Ge-S-X-Y material, wherein each of X and Y is aluminium, magnesium, titanium, vanadium, manganese, cobalt, nickel, molybdenum, tungsten, tin, zinc, lead, copper, silver, palladium, indium, antimony, silicon, bismuth, selenium, arsenic, potassium, tellurium, oxygen, phosphorus or iodine.

Claim 7

The lithographic printing plate of claim 5, wherein said composition containing germanium and sulfur is Ge 35 S 65 , GeS 2 , GeS 4 , Ge 35 S 60 Al 5 , Ge 35 S 60 P 5 , Ge 35 S 60 Sb 5 , Ge 10 S 70 Bi 20 , Ge 35 S 60 Sn 5 , Ge 35 S 60 Zn 5 , Ge 35 S 60 Pb 5 , Ge 25 S 70 Bi 5 , Ge 20 S 70 Bi 10 , Ge 20 S 80 Bi 10 , Ge 40 S 60 Bi 1 , Ge 5 S 80 Bi 15 , Ge 35 S 60 Bi 10 , Ge 35 S 60 Bi 15 , Ge 40 S 60 Bi 5 , Ge 40 S 60 Bi 10 , Ge 35 S 60 Bi 2 , Ge 38 .46 S 61 .54 Bi 5 , Ge 37 .74 S 62 .26 Bi 5 , Ge 31 .3 S 68 .7 Bi 5 , Ge 10 S 60 Bi 30 , Ge 40 S 60 Bi 15 , Ge 10 S 50 Bi 40 , Ge 35 S 60 Bi 5 , Ge 35 S 65 Bi 5 , Ge 33 .3 S 66 .7 Bi 15 , Ge 20 S.sub. 50 Bi 30 , Ge 45 S 50 Bi 5 , Ge 20 S 80 O 0 .2, Ge 20 S 80 O 20 , Ge 42 S 58 Ag 0 .1, Ge 42 S 58 Ag 2 , Ge 36 S 55 I 9 , Ge 35 S 60 Al 15 , Ge 20 S 75 Al 5 , Ge 30 S 60 P 10 , Ge 30 S 60 Sb 10 , Ge 25 S 50 Sb 25 , Ge 25 Si 10 S 60 Bi 5 , Ge 30 Si 5 S 60 Bi 5 , Ge 20 Si 15 S 60 Bi 5 , Ge 15 Si 20 S 60 Bi 5 , Ge 10 Si 25 S 60 Bi 5 , Ge 33 S 57 Bi 5 Ag 5 , Ge 30 S 60 Bi 5 Ag 5 , Ge 34 S 59 Bi 5 Ag 2 , Ge 33 S 57 Bi 5 O 5 , Ge 20 S 80 P 1 O 2 , Ge 20 S 80 P 10 O 20 , Ge 20 S 60 Sb 5 P 5 , Ge 15 S 70 Sb 7 .5 P 7 .5, Ge 10 S 80 P 10 Pb 0 .5, Ge 10 S 80 P 10 Pd 5 , Ge 10 S 80 P 10 Bi 10 , Ge 35 S 60 P 5 Bi 5 or Ge 35 S 60 Bi 5 I 5 .

Claim 8

The lithographic printing plate of claim 1, wherein said metal is copper, silver, gold, aluminum, gallium, indium, tin, vanadium, selenium, chromium, iron, magnesium, germanium, bismuth, manganese, cobalt, nickel, cadmium, thallium, antimony, lead, tellurium, or palladium.

Claim 9

The lithographic printing plate of claim 1, wherein said metal compound is a metal halide, a metal sulfide, or a metal oxide.

Claim 10

The lithographic printing plate of claim 8, wherein the metal of said metal halide is a metallic element of I(b), IV(b) or VI(b) in the periodic table.

Claim 11

The lithographic printing plate of claim 9, wherein said metal is silver, copper or lead.

Claim 12

The lithographic printing plate of claim 8, wherein the metal of said metal sulfide is a metallic element of I(b), II(b), IV(b) or V(b) in the periodic table.

Claim 13

The lithographic printing plate of claim 11, wherein said metal is silver, copper, lead or iron.

Claim 14

The lithographic printing plate of claim 8, wherein the metal of said metal oxide is a metallic element of IV, V or VI in the periodic table.

Claim 15

The lithographic printing plate of claim 1, wherein said composition containing germanium and sulfur is present on said support in an amount of about 0.1 μg/cm 2 to about 12 μg/cm 2 and said metal or said metal compound is present on said support in an amount of about 0.1 μg/cm 2 to about 5 μg/cm 2 .

Claim 16

The lithographic printing plate of claim 1, wherein said composition containing germanium and sulfur and at least one of said metal or said metal compound each is deposited in an isle-like pattern.

Claim 17

The lithographic printing plate of claim 1, obtained either by first vacuum-depositing said metal or said metal compound and then vacuum-depositing said composition, or by vacuum-depositing said metal or said metal compound after first vacuum-depositing said composition.

Claim 18

A processing-free lithographic printing plate, which comprises a support having deposited thereon a composition containing germanium and sulfur and at least one of a metal or a metal compound in a physically mixed state, the term "physically mixed state" meaning the state where both ingredients do not form complete films or layers on said support in a superposed disposition but the microscopic condition in which there are areas where the surface of the support is uncovered, areas of the composition containing germanium and sulfur, areas of a metal or a metal compound, and areas where the composition containing germanium and sulfur and a metal or metal compound are superimposedly deposited on the surface of the support, said metal compound being a metal halide selected from the group consisting of PbI 2 , CuCl, CuI, HgI, TeCl 4 and AgI, a metal sulfide selected from the group consisting of Ag 2 S, PbS, SnS, BiS, FeS, Fe 2 S 3 , CdS and ZnS or a metal oxide selected from the group consisting of V 2 O 5 , MoO 3 , Ge 2 O 3 , Bi 2 O 3 , TiO 2 , PbO and TeO 2 .

Claim 19

A processing-free lithographic printing plate, which comprises a support having deposited thereon a composition containing germanium and sulfur and at least one of a metal or a metal compound in a physically mixed state, the term "physically mixed state" meaning the state where both ingredients do not form complete films or layers on said support in a superposed disposition but the microscopic condition in which there are areas where the surface of the support is uncovered, areas of the composition containing germanium and sulfur, areas of a metal or a metal compound, and areas where the composition containing germanium and sulfur and a metal or metal compound are superimposedly deposited on the surface of the support, said metal compound being a metal halide selected from the group consisting of PbI 2 , CuCl, CuI, HgI, TeCl 4 and AgI, a metal sulfide selected from the group consisting of Ag 2 S, PbS, SnS, BiS, FeS, Fe 2 S 3 , CdS and ZnS or a metal oxide selected from the group consisting of V 2 O 5 , MoO 3 , Ge 2 O 3 , Bi 2 O 3 , TiO 2 , PbO and TeO 2 .

Claim 20

A processing-free lithographic printing plate, which comprises a support having deposited thereon a composition containing germanium and sulfur and at least one of a metal or a metal compound other than germanium in a physically mixed state, the term "physically mixed state" meaning the state where both ingredients do not form complete films or layers on said support in a superposed disposition but the microscopic condition in which there are areas where the surface of the support is uncovered, areas of the composition containing germanium and sulfur, areas of a metal or a metal compound, and areas where the composition containing germanium and sulfur and a metal or metal compound are super-imposedly deposited, on the surface of the support, the physically mixed stated having been formed by applying said composition and said metal or metal compound through masks and/or screens.

Claim 21

A processing-free lithographic printing plate, which comprises a support having deposited thereon a composition containing germanium and sulfur and at least one of a metal or a metal compound other than germanium in a physically mixed state, the term "physically mixed state" meaning the state where both ingredients do not form complete films or layers on said support in a superposed disposition but the microscopic condition in which there are areas where the surface of the support is uncovered, areas of the composition containing germanium and sulfur, areas of a metal or a metal compound, and areas where the composition containing germanium and sulfur and a metal or metal compound are super-imposedly deposited, on the surface of the support, the physically mixed stated having been formed by applying said composition and said metal or metal compound through masks and/or screens.